[Gordon, Charles George CB] (1833-1885); Watson, Charles Moore, Lt., RE (1844-1916). Collection of Three Original Autograph Letters and a Manuscript Map by the Governor of Equatoria Charles Gordon during his White Nile Expedition of 1874-1876 and Reporting on His Steaming up the River from the Mouth of the Sobat River to Gondokoro; WITH: Three Original Autograph Signed Letters by Gordon’s Subordinate Lt. Watson, also Written during the Expedition. Gordon’s manuscripts: Three original autograph letters signed and addressed to Col. Nugent. Saubat, 21 August 1874; Entrance Bahr el Abiad from Bahr Gazal, 25 August 1874; Bahr el Abiad, 26 August – [8 September] [1874].